TRENDnet TEW-WLC100 1v2.07b01 HTTP Header /usr/nginx/sbin/nginx FUN_0040da4c Server stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.1$0-$5k2.40

Summaryinfo

A vulnerability, which was classified as very critical, has been found in TRENDnet TEW-WLC100 1v2.07b01. This affects the function FUN_0040da4c of the file /usr/nginx/sbin/nginx of the component HTTP Header Handler. This manipulation of the argument Server causes stack-based overflow. This vulnerability is registered as CVE-2026-75784. Remote exploitation of the attack is possible. Furthermore, an exploit is available.

Detailsinfo

A vulnerability was found in TRENDnet TEW-WLC100 1v2.07b01. It has been declared as very critical. Affected by this vulnerability is the function FUN_0040da4c of the file /usr/nginx/sbin/nginx of the component HTTP Header Handler. The manipulation of the argument Server with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-75784. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/18/2026).

It is possible to download the exploit at github.com. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.1

VulDB Base Score: 10.0
VulDB Temp Score: 9.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Programming Language: 🔒
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/18/2026 Advisory disclosed
08/18/2026 +0 days VulDB entry created
08/18/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-75784 (🔒)
GCVE (CVE): GCVE-0-2026-75784
GCVE (VulDB): GCVE-100-391525
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/18/2026 08:56
Changes: 08/18/2026 08:56 (57)
Complete: 🔍
Submitter: fuhanhan2014
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #877773: TRENDnet TEW-WLC100 TEW-WLC100 Stack-based Buffer Overflow (by fuhanhan2014)

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